SAP Message REB_COND_MNT053 - Calculation rule &1 is too long for R/3 compatibility

Diagnosis If compatible with R/3, the text field for the calculation type &V1&must only be filled with a single character. In SAP CRM, you can alsofill the text field with three characters. Example: 'B ' is allowed, but not 'BB ' or 'BBB'. System Response Processing is terminated. Procedure Contact your system administrator. Procedure for System Administration Contact the SAP Support Line.