---
title: Available filters
description: "You can tune import batching, sync and async thresholds, translation retries, and machine-translation availability with WordPress filters. Use filters when you need programmatic control beyond the Polylang settings UI. ## When to use filters - Use **Polylang ACF options settings**…"
url: "https://www.wp-polyfields.com/docs/configuration/available-filters/"
updated: "2026-07-05"
category: Configuration
---

# Available filters

You can tune import batching, sync and async thresholds, translation retries, and machine-translation availability with WordPress filters. Use filters when you need programmatic control beyond the Polylang settings UI.

## When to use filters

- Use **Polylang ACF options settings** for preset workload and retry profiles in the admin.
- Use filters for site-specific defaults, custom thresholds per context, or overriding DeepL availability detection.

## Filter reference

- **[Import batch size](https://www.wp-polyfields.com/docs/configuration/import-batch-size/)**: `polyfields_acf_options/import_batch_size`
- **[Workload thresholds](https://www.wp-polyfields.com/docs/configuration/workload-thresholds-async-behavior/)**: `polyfields_acf_options/default_propagation_units`, `polyfields_acf_options/default_translation_units`, `polyfields_acf_options/default_translation_chars`, `polyfields_acf_options/save_sync_thresholds`, `polyfields_acf_options/import_sync_thresholds`
- **[Translation retry behavior](https://www.wp-polyfields.com/docs/configuration/translation-retry-behavior/)**: `polyfields_acf_options/translation_max_retry_attempts`, `polyfields_acf_options/translation_retry_delays`

See the dedicated pages above for defaults, examples, and usage notes for each filter group. For how workload thresholds affect synchronous versus background machine translation, see [Field translation overview](https://www.wp-polyfields.com/docs/field-translation-modes/field-translation-overview/).