Merge pull request #204921 from dlepow/patch-134

[APIM] Fixed window for quota policies

Author: PRMerger13

articles/api-management/api-management-access-restriction-policies.md

@@ -471,7 +471,7 @@ To understand the difference between rate limits and quotas, [see Rate limits an
 | name           | The name of the API or operation for which the quota applies.                                             | Yes                                                              | N/A     |
 | bandwidth      | The maximum total number of kilobytes allowed during the time interval specified in the `renewal-period`. | Either `calls`, `bandwidth`, or both together must be specified. | N/A     |
 | calls          | The maximum total number of calls allowed during the time interval specified in the `renewal-period`.     | Either `calls`, `bandwidth`, or both together must be specified. | N/A     |
-| renewal-period | The time period in seconds after which the quota resets. When it's set to `0` the period is set to infinite.| Yes                                                              | N/A     |
+| renewal-period | The length in seconds of the fixed window after which the quota resets. The start of each period is calculated relative to the start time of the subscription. When `renewal-period` is set to `0`, the period is set to infinite.| Yes                                                              | N/A     |
 
 ### Usage
 
@@ -540,7 +540,7 @@ In the following example, the quota is keyed by the caller IP address.
 | calls               | The maximum total number of calls allowed during the time interval specified in the `renewal-period`.     | Either `calls`, `bandwidth`, or both together must be specified. | N/A     |
 | counter-key         | The key to use for the quota policy. For each key value, a single counter is used for all scopes at which the policy is configured.              | Yes                                                              | N/A     |
 | increment-condition | The boolean expression specifying if the request should be counted towards the quota (`true`)             | No                                                               | N/A     |
-| renewal-period      | The time period in seconds after which the quota resets. When it's set to `0` the period is set to infinite.                                                   | Yes                                                              | N/A     |
+| renewal-period      | The length in seconds of the fixed window after which the quota resets. The start of each period is calculated relative to `first-perdiod-start`. When `renewal-period` is set to `0`, the period is set to infinite.                                                   | Yes                                                              | N/A     |
 | first-period-start      | The starting date and time for quota renewal periods, in the following format: `yyyy-MM-ddTHH:mm:ssZ` as specified by the ISO 8601 standard.   | No                                                              | `0001-01-01T00:00:00Z`     |
 
 > [!NOTE]