diff --git a/aw-design-diagram/principal-user-registration-sequence.md b/aw-design-diagram/principal-user-registration-sequence.md
index 10ae9f1999f171e3d56c2e5fb502abb0343578e6..a35b23b9d263d16414979b5833c3864ce76ff490 100644
--- a/aw-design-diagram/principal-user-registration-sequence.md
+++ b/aw-design-diagram/principal-user-registration-sequence.md
@@ -31,26 +31,5 @@ participant OCM Attestation Manager
   PCM App ->> OCM Admin: Scans the QR code, and the connection between PCM and OCM gets completed and active
   OCM Connection Manager ->> OCM Principal Manager: Request for issuance of Principal credential
   OCM Principal Manager ->> OCM Attestation Manager: Requests Attestation Manager with Principal Credential CredDef to issue credential based on CredDef
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-  **PrincipalMembershipCredential**
-This schema is used to issue VC to Principal User at the time of registration. This VC will indicate respective principal user is part of Gaiax ecosystem. This VC will also be used every time to make respective connection as Trusted via Proof Verification of this schemaID
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-Following attributes should be in schema (case sensitive)
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-    1. email // principalUser email address
-    2. issuerDID // issuer OCM organization public DID 
-    3. subjectDID // holder pairwise DID
   OCM Attestation Manager ->> PCM App: Issues Credential to the individual and the credential gets stored in PCM App's wallet
   end