B055 is a standard SAP Pooled Table which is used to store C Status, Laboratory data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The B055 table consists of various fields, each holding specific information or linking keys about C Status, Laboratory data available in SAP. These include KAPPL (Application), KSCHL (Output Type), MMSTA (Plant-Specific Material Status), LABOR (Laboratory/design office)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .