Solution : https://service.sap.com/sap/support/notes/536534 (SAP Service marketplace login required)
Key words :
system generates short dump compute_bcd_overflow, measure produces larger values, availability check basically determines, material availability check, result determined initially, fields mdvax-datpmg, defined field length, mdvax-datpm1, respective material, target field
Related Notes :
1361216 | ATP check: Runtime error COMPUTE_BCD_OVERFLOW |
493381 | Displaying maximum ATP quantity on missing parts list |