3728312 - Restriction on prefixes for flexible sales document numbering

When implementing flexible sales document numbering using prefixes, there's the need to know the system's restrictions for this functionality.

SAP S/4HANA Cloud Public Edition

Any prefixes defined must conform to the following format:

• Alphanumeric characters only (A-Z, 0-9, no special characters);
• Maximum length of five characters;
• The last character must be a letter (e.g.: 1A, 1234B);
• Prefixes P, S, PBD and TMP are reserved for system use and cannot be assigned.

Note: The technical maximum length of a sales document number is 10 characters. When a prefix is used, this reduces the length of the possible number range by the length of the prefix. For example, a standard sales document number could be 1234567890, if applying the number range prefix ABC, the format would change to something resembling ABC1234567. This leaves only 7 characters for the purely numeric part of the document number, which is dictated solely by the number range interval.

3083811 - Flexible document numbering in SD: restrictions

Flexible Sales Document Numbering | SAP Help Portal

reserved prefixes, flexible document numbering, single numeric prefix, sales order prefix, delivery prefix, invoice prefix, codification restrictions, namespace reservation, alphanumeric prefix limitations, sales document, number range, number range prefix , KBA , SD-CRF-NUM-2CL , Number Ranges (Public Cloud) , Problem