SAP Message 26170 - Document number modifier cannot contain only figures

Diagnosis
You are creating a test file for transferring documents from anexternal system. In the Document number prefix field you entereda five-figure number. The system is to copy this as a prefix for theselected document numbers.

  • You cannot use figures only (for example, not 11111 but 111).

  • Any blank characters you enter are converted to "_" (for example, 111
  • -> 111__).
    • Selected document numbers that are longer than 20 characters are
    • shifted five characters to the right, then given the prefix you defined(for example, 111__ad-01).

      Procedure
      Correct your entry in the Document nummer prefix field.