SAP Note 25567 - Runtime error CONVERT_NO_NUMBER in SAPFGRWS

Symptom:

1. When selecting, a termination occurs in program SAPFGRWS with the runtime error CONVERT_NO_NUMBER. The error occurs in the FORM routine E18_CALCULATE_PERIOD in the line
E18_RESULT = ( 10 * ( E18_PERIOD + E18_GSIZE - 1 )
/ E18_GSIZE - 5 ) / 10 * E18_GSIZE.

2. When generating a report group, a termination occurs in program SAPFGRWR with the runtime error CONVERT_NO_NUMBER. The error occurs in the FORM routine CALCULATE_PERIODS in the line
CP_RESULT = ( 10 * ( CP_PERIOD + CP_GSIZE - 1 )
/ CP_GSIZE - 5 ) / 10 * CP_GSIZE.

Cause and prerequisites

Preconditions: In the first case, a report of the report group uses a data set entry which contains an empty period set in the additional set. In the second case, all the data set entries used in the report group have empty period sets in the additional set.
Cause: Empty sets are not allowed when defining a Report Writer report. Empty sets in the additional set are not recognized when checking the report.

Solution
Insert at least one entry into the affected sets.

Additional key words

Report Writer, period set, additional set, data set entry