diff --git a/OpenAPI/TS32291_Nchf_ConvergedCharging.yaml b/OpenAPI/TS32291_Nchf_ConvergedCharging.yaml
index 8db36c4d6201afca950018b34b19366d830e8ee1..381082b155b0fee87524aa23a25683fd41a1eff6 100644
--- a/OpenAPI/TS32291_Nchf_ConvergedCharging.yaml
+++ b/OpenAPI/TS32291_Nchf_ConvergedCharging.yaml
@@ -804,6 +804,8 @@ components:
           type: boolean
         satelliteBackhaulInformation:
             $ref: '#/components/schemas/SatelliteBackhaulInformation'
+        serviceLevelAA:
+          type: string
       required:
         - pduSessionID
         - dnnId
@@ -1319,6 +1321,8 @@ components:
           minItems: 0
         satelliteAccessIndicator:
           type: boolean
+        serviceLevelAA:
+          type: string
       required:
         - registrationMessagetype
     PSCellInformation: