diff --git a/.changelog/27744.txt b/.changelog/27744.txt
new file mode 100644
index 000000000000..a51b3c17b1a3
--- /dev/null
+++ b/.changelog/27744.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+resource/aws_appstream_stack: Fix `redirect_url` max character length
+```
diff --git a/internal/service/appstream/stack.go b/internal/service/appstream/stack.go
index 79cc0a915561..c32706368f58 100644
--- a/internal/service/appstream/stack.go
+++ b/internal/service/appstream/stack.go
@@ -129,7 +129,7 @@ func ResourceStack() *schema.Resource {
 				Type:         schema.TypeString,
 				Optional:     true,
 				Computed:     true,
-				ValidateFunc: validation.StringLenBetween(0, 100),
+				ValidateFunc: validation.StringLenBetween(0, 1000),
 			},
 			"storage_connectors": {
 				Type:     schema.TypeSet,