Hello,
TetraPak proposed a Inconsistency rule for the Thailand Tax ID and Personal ID kind of similar to the one we have for SIRET & SIREN number in France. These ID´s have to be identical if both are given. This has been requested directly from the Thai colleagues of TetraPak.
Unfortunately they provided the information for the rule in thai: https://www.rd.go.th/fileadmin/user_upload/SMEs/infographic/13-1.vat_360.pdf