diff --git a/doc/api.md b/doc/api.md
index 5153d9935..0adc09104 100644
--- a/doc/api.md
+++ b/doc/api.md
@@ -417,7 +417,13 @@ Case 2:
 "explicitAttrs": true
 ```
 
-just measures defined in active, static (plus conditionally TimeInstant) will be propagated to NGSI interface.
+In this case, should only progress active and static attributes defined in the device or group provision (`TimeInstant` attribute 
+will be also included if enabled). In other words, having `"explicitAttrs":true` would prevent the IoTA creating attributes into the related 
+entity  within the context broker from measures that are not explicitly defined in the device or group provision. 
+
+Note that attributes defined in the provision that are not receiving a measure (or having a expression defined that is resulting `null`) 
+will not progress (this means, the NGSI request to update the entity in the context broker is not going to include that attribute) 
+unless `skipValue` is defined to other value than `null`
 
 Case 3:
 
diff --git a/test/unit/ngsiv2/examples/contextRequests/updateContextMultientityPlugin25.json b/test/unit/ngsiv2/examples/contextRequests/updateContextMultientityPlugin25.json
index 50591d76d..0892e5049 100644
--- a/test/unit/ngsiv2/examples/contextRequests/updateContextMultientityPlugin25.json
+++ b/test/unit/ngsiv2/examples/contextRequests/updateContextMultientityPlugin25.json
@@ -11,6 +11,10 @@
       "expectedAtt": {
           "type": "number",
           "value": 13
+      },
+      "alsoexpectedAtt": {
+          "value": null,
+          "type": "number"
       }
     },
     {
diff --git a/test/unit/ngsiv2/plugins/multientity-plugin_test.js b/test/unit/ngsiv2/plugins/multientity-plugin_test.js
index cea20c32c..a89e33d7c 100644
--- a/test/unit/ngsiv2/plugins/multientity-plugin_test.js
+++ b/test/unit/ngsiv2/plugins/multientity-plugin_test.js
@@ -522,7 +522,13 @@ const iotAgentConfig = {
                     expression: 'z+1'
                 },
                 {
-                    name: 'nonexpectedAtt',
+                    name: 'alsoexpectedAtt',
+                    type: 'number',
+                    expression: 'w+1',
+                    skipValue: 'loquesea'
+                },
+                {
+                    name: 'nonexpectedAttByDefaultSkipValue',
                     type: 'number',
                     expression: 'w+1'
                 },
@@ -600,7 +606,7 @@ const iotAgentConfig = {
 
 describe('NGSI-v2 - Multi-entity plugin', function () {
     beforeEach(function (done) {
-        logger.setLevel('DEBUG');
+        logger.setLevel('FATAL');
 
         iotAgentLib.activate(iotAgentConfig, function () {
             iotAgentLib.clearAll(function () {