Increase limit for maximum concurrent executions beyond 1000

.changelog/37980.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+resource/aws_lambda_event_source_mapping: Remove the upper limit on `scaling_config.maximum_concurrency`
+```

internal/service/lambda/event_source_mapping.go

@@ -251,7 +251,7 @@ func resourceEventSourceMapping() *schema.Resource {
 						"maximum_concurrency": {
 							Type:         schema.TypeInt,
 							Optional:     true,
-							ValidateFunc: validation.IntBetween(2, 1000),
+							ValidateFunc: validation.IntAtLeast(2),
 						},
 					},
 				},

names/names.go

@@ -18,6 +18,7 @@ package names
 import (
 	"fmt"
 	"log"
+	"slices"
 	"strings"
 
 	"github.com/hashicorp/terraform-provider-aws/names/data"
@@ -170,8 +171,55 @@ const (
 
 	// AWS ISOB (US) partition's regions.
 	USISOBEast1RegionID = "us-isob-east-1" // US ISOB East (Ohio).
+
+	// AWS ISOF partition's regions.
+	EUISOEWest1RegionID = "eu-isoe-west-1" // EU ISOE West.
 )
 
+var allRegionIDs = []string{
+	AFSouth1RegionID,
+	APEast1RegionID,
+	APNortheast1RegionID,
+	APNortheast2RegionID,
+	APNortheast3RegionID,
+	APSouth1RegionID,
+	APSouth2RegionID,
+	APSoutheast1RegionID,
+	APSoutheast2RegionID,
+	APSoutheast3RegionID,
+	APSoutheast4RegionID,
+	CACentral1RegionID,
+	CAWest1RegionID,
+	EUCentral1RegionID,
+	EUCentral2RegionID,
+	EUNorth1RegionID,
+	EUSouth1RegionID,
+	EUSouth2RegionID,
+	EUWest1RegionID,
+	EUWest2RegionID,
+	EUWest3RegionID,
+	ILCentral1RegionID,
+	MECentral1RegionID,
+	MESouth1RegionID,
+	SAEast1RegionID,
+	USEast1RegionID,
+	USEast2RegionID,
+	USWest1RegionID,
+	USWest2RegionID,
+	CNNorth1RegionID,
+	CNNorthwest1RegionID,
+	USGovEast1RegionID,
+	USGovWest1RegionID,
+	USISOEast1RegionID,
+	USISOWest1RegionID,
+	USISOBEast1RegionID,
+	EUISOEWest1RegionID,
+}
+
+func Regions() []string {
+	return slices.Clone(allRegionIDs)
+}
+
 func DNSSuffixForPartition(partition string) string {
 	switch partition {
 	case "":
@@ -218,6 +266,8 @@ func PartitionForRegion(region string) string {
 		return ISOPartitionID
 	case USISOBEast1RegionID:
 		return ISOBPartitionID
+	case EUISOEWest1RegionID:
+		return ISOEPartitionID
 	case USGovEast1RegionID, USGovWest1RegionID:
 		return USGovCloudPartitionID
 	default:

website/docs/r/lambda_event_source_mapping.html.markdown

@@ -199,7 +199,7 @@ resource "aws_lambda_event_source_mapping" "example" {
 
 ### scaling_config Configuration Block
 
-* `maximum_concurrency` - (Optional) Limits the number of concurrent instances that the Amazon SQS event source can invoke. Must be between `2` and `1000`. See [Configuring maximum concurrency for Amazon SQS event sources](https://docs.aws.amazon.com/lambda/latest/dg/with-sqs.html#events-sqs-max-concurrency).
+* `maximum_concurrency` - (Optional) Limits the number of concurrent instances that the Amazon SQS event source can invoke. Must be greater than or equal to `2`. See [Configuring maximum concurrency for Amazon SQS event sources](https://docs.aws.amazon.com/lambda/latest/dg/with-sqs.html#events-sqs-max-concurrency). You need to raise a [Service Quota Ticket](https://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html) to increase the concurrency beyond 1000.
 
 ### self_managed_event_source Configuration Block