diff --git a/docs/content/docs/guide/gitops_commands.md b/docs/content/docs/guide/gitops_commands.md
index eca9abc26..fdf8b2fcb 100644
--- a/docs/content/docs/guide/gitops_commands.md
+++ b/docs/content/docs/guide/gitops_commands.md
@@ -46,13 +46,15 @@ For restarting all pipeline runs:
 For restarting a specific pipeline run:
 2. Use `/retest <pipelinerun-name>` or `/test <pipelinerun-name>` within your commit message. Replace `<pipelinerun-name>` with the specific name of the pipeline run you want to restart.
 
+The GitOps command triggers a PipelineRun only on the latest commit (HEAD) of the branch and does not work on older commits.
+
 **Note:**
 
 When executing `GitOps` commands on a commit that exists in multiple branches within a push request, the branch with the latest commit will be used.
 
 This means:
 
-1. If a user specifies commands like `/retest` or `/test` without any argument in a comment on a branch, the test will automatically be performed on the **main** branch.
+1. When a user comments with commands like `/retest` or `/test` on a branch without specifying a branch name, the test will automatically run on the **default branch** (e.g. main, master) of the repository.
 
    Examples:
    1. `/retest`
diff --git a/pkg/provider/github/github.go b/pkg/provider/github/github.go
index ab0f550df..d7c91bb4e 100644
--- a/pkg/provider/github/github.go
+++ b/pkg/provider/github/github.go
@@ -600,5 +600,5 @@ func (v *Provider) isBranchContainsCommit(ctx context.Context, runevent *info.Ev
 	if branchInfo.Commit.GetSHA() == runevent.SHA {
 		return nil
 	}
-	return fmt.Errorf("provided branch %s does not contains sha %s", branchName, runevent.SHA)
+	return fmt.Errorf("provided SHA %s is not the HEAD commit of the branch %s", runevent.SHA, branchName)
 }
diff --git a/pkg/provider/github/parse_payload_test.go b/pkg/provider/github/parse_payload_test.go
index 92c852ab1..969aaebed 100644
--- a/pkg/provider/github/parse_payload_test.go
+++ b/pkg/provider/github/parse_payload_test.go
@@ -539,7 +539,7 @@ func TestParsePayLoad(t *testing.T) {
 			shaRet:            "samplePRshanew",
 			targetPipelinerun: "dummy",
 			wantedBranchName:  "main",
-			wantErrString:     "provided branch main does not contains sha samplePRshanew",
+			wantErrString:     "provided SHA samplePRshanew is not the HEAD commit of the branch main",
 		},
 	}
 	for _, tt := range tests {