E_0503 — Check invoice for a miscellaneous service

Step	Check	Result	Code	Note
1	Is this an invoice for „late payment charges“?	yes	→ Step 3	—
—	—	no	→ Step 2	—
2	Does the invoice meet further requirements pursuant to §14 Abs. 4 UStG?	no	A01	Cluster: Rejection Invoice does not comply with §14 Abs. 4 UStG. Note: The rejection must be substantiated.
—	—	yes	→ Step 3	—
3	Is the invoice date ≤ the receipt date?	no	A02	Cluster: Rejection Invoice date is in the future
—	—	yes	→ Step 4	—
4	Does the invoice number used in this invoice already exist from the invoice issuer?	yes	A03	Cluster: Rejection Invoice number has already been used.
—	—	no	→ Step 5	—
5	Is there a calculation error in the invoice?	yes	A04	Cluster: Rejection There is a calculation error.
—	—	no	→ Step 7	—
7	Is the due date deadline undercut? Note: undercut due date means: payment term ≤ 10 WT from the invoice receipt date	yes	A05	Cluster: Rejection The payment term falls below the minimum.
—	—	no	→ step 9	—
9	Is this an invoice for „late payment charges“?	yes	→ Step 27	—
—	—	no	→ Step 10	Note: This is an invoice for reactive energy or interruption / restoration of grid connection use.
10	Are the line items billed with the correct tax rate?	no	A07	Cluster: Rejection At least one of the items has been billed with the incorrect tax rate.
—	—	yes	→ Step 11	—
11	Is this an invoice for „interruption/restoration of the grid connection use“?	yes	→ Step 12	—
—	—	no	→ Step 34	Note: This is an invoice for “reactive energy”.
12	Is a valid price sheet “price sheet disconnect / reconnect and late payment charges” available for the billing point in time?	no	A08	Cluster: Rejection The supplier has no valid price sheet „Price sheet disconnect / reconnect and late payment charges“.
—	—	yes	→ Step 13	—
13	Did the supplier order a disconnection order with the order number of the disconnection order stated in the invoice?	no	A09	Cluster: Rejection The disconnection order to be billed is not known.
—	—	yes	→ Step 14	—
14	Has the disconnection order already been billed?	yes	→ Step 15	—
—	—	no	→ Step 16	—
15	Has this invoice for the disconnection order been cancelled again?	no	A10	Cluster: Rejection The disconnection order has already been billed (duplicate invoice).
—	—	yes	→ Step 16	—
16	Has the identified disconnection order been cancelled and the cancellation confirmed?	yes	→ Step 17	—
—	—	no	→ Step 19	Note: The disconnection order was not canceled or the cancellation was made too late and was therefore rejected.
17	Is article ID [2-01-7-004] (cancellation of an order to interrupt grid connection use up to the day before the disconnection) or article ID [2-01-7-005] (cancellation of an order to interrupt grid connection use on the day of the disconnection) billed in the invoice?	no	A11	Cluster: Rejection The billed article does not correspond to the service to be billed for a cancelled order for the interruption of the grid connection use.
—	—	yes	→ Step 18	—
18	Does the price in the invoice match the price from the price sheet?	no	A12	Cluster: Rejection Price in the invoice does not match the price “Cancellation of an order to interrupt grid connection use” on the price sheet, or the article ID is not named in the price sheet.
—	—	yes	→ Step 44	—
19	Was the disconnection from the disconnection order successful?	yes	→ Step 20	—
—	—	no	→ Step 25	Note: Disconnection was not successful.
20	Has the supplier already ordered the restoration of the grid connection use for the interruption of the grid connection use implemented from this order?	yes	→ Step 21	—
—	—	no	→ Step 22	—
21	Was the reconnection ordered by the supplier with the option “reconnection also outside regular working hours”?	yes	→ Step 23	—
—	—	no	→ Step 22	—
22	Are both article IDs [2-01-7-001] (interruption of grid connection use during regular working hours) and [2-01-7-002] (restoration of grid connection use during regular working hours) billed in the invoice?	no	A13	Cluster: Rejection The billed article ID(s) do(es) not correspond to the service to be billed for an interruption and restoration of the grid connection use.
—	—	yes	→ Step 24	—
23	Is article ID [2-01-7-001] (interruption of grid connection use during regular working hours) and, in addition, exactly one of the two article IDs [2-01-7-002] (restoration of grid connection use during regular working hours) or [2-01-7-006] (restoration of grid connection use outside regular working hours) billed in the invoice?	no	A14	Cluster: Rejection The billed article ID(s) do(es) not correspond to the service to be billed for an interruption and restoration of the grid connection use.
—	—	yes	→ Step 24	—
24	Do the prices in the invoice match the prices from the price sheet?	no	A15	Cluster: Rejection At least one price in the invoice does not match the price for an interruption and restoration of the grid connection use on the price sheet, or at least one article ID is not named in the price sheet
—	—	yes	→ Step 44	—
25	Is article ID [2-01-7-003] (unsuccessful interruption) billed in the invoice?	no	A16	Cluster: Rejection The billed article does not correspond to the service to be billed for an unsuccessful interruption
—	—	yes	→ Step 26	—
26	Does the price in the invoice match the price from the price sheet?	no	A17	Cluster: Rejection Price in the invoice does not match the price for an unsuccessful interruption on the price sheet, or the article ID is not named in the price sheet
—	—	yes	→ Step 44	—
27	Is a valid price sheet “price sheet disconnect / reconnect and late payment charges” available for the billing point in time?	no	A18	Cluster: Rejection The supplier has no valid price sheet for the late payment charges
—	—	yes	→ Step 28	—
28	Does the supplier have the invoice to which the late payment charges invoice relates?	no	A19	Cluster: Rejection The invoice to which the late payment charges invoice refers is not known.
—	—	yes	→ Step 29	—
29	Is article ID [2-02-0-001] (flat-rate late payment charges) or article ID [2-02-0-002] (variable late payment charges) billed in the invoice?	no	A20	Cluster: Rejection The billed article does not correspond to the service to be billed for late payment charges
—	—	yes	→ Step 30	—
30	Are the late payment charges justified?	no	A21	Cluster: Rejection The late payment charges are not justified
—	—	yes	→ Step 31	—
31	Are the late payment charges billed as a flat rate with article ID [2-02-0-001] (late payment charges, flat rate)?	no	→ Step 33	Note: The late payment charges are billed variably with the article ID [2-02-0-002]
—	—	yes	→ Step 32	—
32	Does the price in the invoice match the price from the price sheet?	no	A22	Cluster: Rejection Price in the invoice does not match the price for late payment charges on the price sheet, or the article ID is not named in the price sheet
—	—	yes	→ Step 44	—
33	Do the late payment charges asserted comply with the statutory provisions?	no	A23	Cluster: Rejection Price is not reasonable in amount
—	—	yes	→ Step 44	—
34	Has the billing of reactive energy between supplier and grid operator been agreed for this location for the billed time period?	no	A24	Cluster: Rejection The billing of reactive energy has not been agreed with the supplier
—	—	yes	→ Step 35	—
35	Is a valid price sheet “price sheet reactive energy” available for the billing point in time?	no	A25	Cluster: Rejection The supplier has no valid price sheet for the voluntary billing of other services
—	—	yes	→ Step 36	—
36	Is the recipient of the invoice assigned to the stated location for at least one day of the stated billing period?	no	A26	Cluster: Rejection The LF rejects payment of the reactive energy invoice. The LF is not assigned to the location for a single day of the billing period.
—	—	yes	→ Step 37	—
37	Is the recipient of the invoice assigned to the stated location for the entire stated billing period?	no	A32	Cluster: Rejection The LF rejects payment of the reactive energy invoice. A rejection of the payment is substantiated by the LF. Note: The LF states the expected billing period.
—	—	yes	→ Step 38	—
38	Is the invoice date < the end of the billing period?	yes	A33	Cluster: Rejection The invoice date is before the end of the billing period.
—	—	no	→ Step 39	—
39	Does the invoicing period contain a time interval that has already been billed?	yes	A27	Cluster: Rejection The invoice contains a time period that has already been billed
—	—	no	→ Step 40	—
40	Does the supplier have the relevant meter reading values from MSB?	no	A28	Cluster: Rejection The meter reading values relevant for the invoice check are not available
—	—	yes	→ Step 41	—
41	Was the contractually agreed quantity of reactive energy billed?	no	A29	Cluster: Rejection The quantity of reactive energy is not correct
—	—	yes	→ Step 42	—
42	Is one of the following article IDs billed in the invoice? [3-01-0-001] (reactive energy) [3-02-0-001] (reactive energy 1) [3-02-0-002] (reactive energy 2)	no	A30	Cluster: Rejection The billed article does not correspond to any article ID for reactive energy
—	—	yes	→ Step 43	—
43	Does the price in the invoice match the price from the price sheet?	no	A31	Cluster: Rejection Price in the invoice does not match the price for reactive energy on the price sheet, or the article ID is not named in the price sheet
—	—	yes	→ Step 44	—
44	Has a previously unspecified error occurred?	no	End	Send remittance advice
—	—	yes	A99	Cluster: Rejection Other Note: The identified problem must be described/named in the response. End of usability: 01.04.2027 00:00