A991 is a standard SAP Table which is used to store ServcAgent/Dlv.Prior./TfZn P.Dep/Tf zn.dest data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The A991 table consists of various fields, each holding specific information or linking keys about ServcAgent/Dlv.Prior./TfZn P.Dep/Tf zn.dest data available in SAP. These include KAPPL (Application), KSCHL (Condition type), TDLNR (Number of forwarding agent in the shipment stage), LPRIO (Delivery Priority)... 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. .