diff --git a/session-logs/2026-04-30-session.md b/session-logs/2026-04-30-session.md
index aa9085f..7ad36f3 100644
--- a/session-logs/2026-04-30-session.md
+++ b/session-logs/2026-04-30-session.md
@@ -373,12 +373,32 @@ Investigated Syncro billing for 2026-04-30. **Major billing gap identified and v
 - Checked all 31 customer invoice records for matching invoices: **NONE FOUND**
 - Example: Kittle #32223 shows "Invoiced" status but customer has no invoice for that ticket
 - Example: Cascades has 11 tickets marked "Invoiced" with no time, no invoices, and NO contract
+- All tickets have only 1 comment (Initial Issue) - no invoice workflow comments
+- All tickets missing normal invoice workflow: no time logged → no "Invoice emailed" comment → no actual invoice
 - This is lost revenue, not contract-covered work
 
+**Root Cause Analysis:**
+Pattern indicates tickets are being marked "Invoiced" status **WITHOUT following proper billing workflow**:
+- **NOT a Claude/API integration issue** (Claude doesn't change ticket statuses)
+- **NOT a one-time event** (tickets span March 3 - April 28, multiple update dates)
+- **Likely causes:**
+  1. Manual status changes to clear tickets from queue without billing
+  2. Syncro automation/workflow rule that's misconfigured
+  3. Bulk status updates being performed periodically
+
+**Update date clusters suggest periodic batch processing:**
+- 2026-04-07: 4 tickets updated
+- 2026-04-09: 4 tickets updated
+- 2026-04-15: 4 tickets updated
+- 2026-04-16: 3 tickets updated
+
 **Action Required:**
-1. Review each of the 31 tickets above
-2. Add time entries for actual work performed
-3. Generate invoices if not already sent
-4. If tickets were marked "Invoiced" in error, correct the status
+1. **URGENT:** Review each of the 31 tickets and add time entries for work performed
+2. Generate invoices for tickets with actual billable work
+3. **PROCESS FIX:** Investigate what's changing tickets to "Invoiced" status:
+   - Check Syncro automation rules
+   - Check if bulk status updates are being used
+   - Consider requiring time entries before allowing "Invoiced" status
+   - Review workflow to prevent future revenue loss
 
 **Note on Sombra (#32225):** Per Mike, RMM enrollment doesn't require billing. Focus on the other 30 tickets above.