Update indicator-manage.md

Added note under parameter table to detail that network indicators cannot have the action parameter set to BlockAndRemediate.

defender-endpoint/indicator-manage.md

@@ -79,6 +79,9 @@ The following table shows the supported parameters.
 > Classless Inter-Domain Routing (CIDR) notation for IP addresses is not supported.
 For more information, see [Microsoft Defender for Endpoint alert categories are now aligned with MITRE ATT&CK!](https://techcommunity.microsoft.com/t5/microsoft-defender-for-endpoint/microsoft-defender-atp-alert-categories-are-now-aligned-with/ba-p/732748).
 
+> [!NOTE]
+> Network Indicators 'action' type does not support the use of *BlockAndRemediate*. The Network indicator will not import if it is set to *BlockAndRemediate*.
+
 Watch this video to learn how Microsoft Defender for Endpoint provides multiple ways to add and manage Indicators of compromise (IoCs). 
 > [!VIDEO https://www.microsoft.com/en-us/videoplayer/embed/RE4qLVw]