diff --git a/lightning/src/blinded_path/payment.rs b/lightning/src/blinded_path/payment.rs
index e3a819271..cf5af7d78 100644
--- a/lightning/src/blinded_path/payment.rs
+++ b/lightning/src/blinded_path/payment.rs
@@ -349,6 +349,11 @@ pub enum PaymentContext {
 	/// [`Offer`]: crate::offers::offer::Offer
 	Bolt12Offer(Bolt12OfferContext),
 
+	/// The payment was made for a static invoice requested from a BOLT 12 [`Offer`].
+	///
+	/// [`Offer`]: crate::offers::offer::Offer
+	AsyncBolt12Offer(AsyncBolt12OfferContext),
+
 	/// The payment was made for an invoice sent for a BOLT 12 [`Refund`].
 	///
 	/// [`Refund`]: crate::offers::refund::Refund
@@ -378,6 +383,18 @@ pub struct Bolt12OfferContext {
 	pub invoice_request: InvoiceRequestFields,
 }
 
+/// The context of a payment made for a static invoice requested from a BOLT 12 [`Offer`].
+///
+/// [`Offer`]: crate::offers::offer::Offer
+#[derive(Clone, Debug, Eq, PartialEq)]
+pub struct AsyncBolt12OfferContext {
+	/// The [`Nonce`] used to verify that an inbound [`InvoiceRequest`] corresponds to this static
+	/// invoice's offer.
+	///
+	/// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
+	pub offer_nonce: Nonce,
+}
+
 /// The context of a payment made for an invoice sent for a BOLT 12 [`Refund`].
 ///
 /// [`Refund`]: crate::offers::refund::Refund
@@ -627,6 +644,7 @@ impl_writeable_tlv_based_enum_legacy!(PaymentContext,
 	// 0 for Unknown removed in version 0.1.
 	(1, Bolt12Offer),
 	(2, Bolt12Refund),
+	(3, AsyncBolt12Offer),
 );
 
 impl<'a> Writeable for PaymentContextRef<'a> {
@@ -651,6 +669,10 @@ impl_writeable_tlv_based!(Bolt12OfferContext, {
 	(2, invoice_request, required),
 });
 
+impl_writeable_tlv_based!(AsyncBolt12OfferContext, {
+	(0, offer_nonce, required),
+});
+
 impl_writeable_tlv_based!(Bolt12RefundContext, {});
 
 #[cfg(test)]
diff --git a/lightning/src/events/mod.rs b/lightning/src/events/mod.rs
index 5bc446f97..0a2a2093c 100644
--- a/lightning/src/events/mod.rs
+++ b/lightning/src/events/mod.rs
@@ -181,27 +181,32 @@ impl PaymentPurpose {
 	pub(crate) fn from_parts(
 		payment_preimage: Option<PaymentPreimage>, payment_secret: PaymentSecret,
 		payment_context: Option<PaymentContext>,
-	) -> Self {
+	) -> Result<Self, ()> {
 		match payment_context {
 			None => {
-				PaymentPurpose::Bolt11InvoicePayment {
+				Ok(PaymentPurpose::Bolt11InvoicePayment {
 					payment_preimage,
 					payment_secret,
-				}
+				})
 			},
 			Some(PaymentContext::Bolt12Offer(context)) => {
-				PaymentPurpose::Bolt12OfferPayment {
+				Ok(PaymentPurpose::Bolt12OfferPayment {
 					payment_preimage,
 					payment_secret,
 					payment_context: context,
-				}
+				})
 			},
 			Some(PaymentContext::Bolt12Refund(context)) => {
-				PaymentPurpose::Bolt12RefundPayment {
+				Ok(PaymentPurpose::Bolt12RefundPayment {
 					payment_preimage,
 					payment_secret,
 					payment_context: context,
-				}
+				})
+			},
+			Some(PaymentContext::AsyncBolt12Offer(_context)) => {
+				// This code will change to return Self::Bolt12OfferPayment when we add support for async
+				// receive.
+				Err(())
 			},
 		}
 	}
@@ -1865,7 +1870,8 @@ impl MaybeReadable for Event {
 						(13, payment_id, option),
 					});
 					let purpose = match payment_secret {
-						Some(secret) => PaymentPurpose::from_parts(payment_preimage, secret, payment_context),
+						Some(secret) => PaymentPurpose::from_parts(payment_preimage, secret, payment_context)
+							.map_err(|()| msgs::DecodeError::InvalidValue)?,
 						None if payment_preimage.is_some() => PaymentPurpose::SpontaneousPayment(payment_preimage.unwrap()),
 						None => return Err(msgs::DecodeError::InvalidValue),
 					};
diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs
index fac1689ec..58b458cbb 100644
--- a/lightning/src/ln/channelmanager.rs
+++ b/lightning/src/ln/channelmanager.rs
@@ -6253,11 +6253,16 @@ where
 								match claimable_htlc.onion_payload {
 									OnionPayload::Invoice { .. } => {
 										let payment_data = payment_data.unwrap();
-										let purpose = events::PaymentPurpose::from_parts(
+										let purpose = match events::PaymentPurpose::from_parts(
 											payment_preimage,
 											payment_data.payment_secret,
 											payment_context,
-										);
+										) {
+											Ok(purpose) => purpose,
+											Err(()) => {
+												fail_htlc!(claimable_htlc, payment_hash);
+											},
+										};
 										check_total_value!(purpose);
 									},
 									OnionPayload::Spontaneous(preimage) => {